Machine for rolling finger-rings.



H. HEINRICH.

MAGH INB FOR ROLLING FINGER RINGS. APPLICATION FILED JAN. 30, 1911.

1,124,434 Patented Jan. 12, 1915.

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-H. HENRICH.

MACHINE FOR ROLLING FINGER RING$.

APPLICATION FILED JAN. 30, 1911.

3 SHEETS-SHEET 2.

. Patented Jan/12, 1915.

H. HENRIGH.

MAGHIN FOR ROLLING FINGER RINGS. APPLI ATION FILED JAN. 30 1911.

Patented Jan. 12, 1915;

3 SHEETS-SHEET 3 nanny nn'unrcn, 01? NEW roux, n. 'Y.

mAcHmii ro'n Romano FINGER-amass p fi ation of Letters Patent. TPatented Jan. 12, 1915.

.- Application ai'eaaanuar 30,1911. sesame. 605,581.

Toullwhom itma concerm; 7

Be-it known tat-'1', HENRY HENinoH, a citizen of thei'Uni'ted StatesofAmerica, re-

- siding in New York, in the borough of Man- -hattan, county and Stateof New York, have invented certain new and useful Improvements inMachines for Rolling Finger- Rings, of which the following isaspecification.

. This invention relates to improvements in machines for rollingseamless finger-rings in which the blanks, which are formed by means ofdies, are transformed .into completely finished rings of the required'size 'and cross-section, and in which the exact size'to be produced isaccurately controlled a visual index so as to permit the removal of thefinished ring at the proper time.

q The invention consists more specifically of a machine for rollingseamless finger rings provided with a visual index by means of which theexact size of the finger-ring rolled on the mandrel of the machine isindicated, the special construction of said visual index being fullydescribed hereinafter and finally pointed out in the claims. p

In the accompanying drawings, Figure 1 is a front-elevationof myimproved machine for rolling finger-rings, partly in section through thesupporting table and showing the visual index device, Fig. 2 is avertical transverse section on line 2, 2, Fig. 1, Figs. 3 and 4 arehorizontalsections respectively on lines 3,.3 and 4, 4, Fig. 1, drawn ona larger scale, Fig. 5 is a detail vertical section showin the mandreland operating rollers and %he visual index for rolling a finger ring ofpredetermined size, and Fig. 6 is a vertical transverse section on line6,6, Fig. 5. v v

Similar letters of referencein'dicat'e corresponding parts throughoutthe different figures.

Referring to the drawings, A, represents the table of my improvedmachine for roll- "ing seamless finger-rings. On the table A issupported an upright standard a, which is provided with ajournal-bearing for a horizontal shaft 8, on the front-end of which ismounted a grooved ring-forming roller 6 which is continuously rotated bysuitable gear-wheel transmission which is applied to the opposite end ofthe shaft 8 ;(not shown in the drawings).

',On the main-shaft is mounted a' gearwheel' 9 which meshes with apinion g on with a gear-wheel a short shaft a that is supported in abracket-bearing 9 which is attached to the upright standard a. Thepinion g meshes g", the shaft of which also turns-in a bearing.

v Adjacent to the gear-wheel g is arranged a pinion 9' which is keyed totherear-end of the'mandrel-spindle .9 the front-end of which is providedwith a square socket for inserting a mandrel m on which the ringblankisplac'ed. The mandrel-spindle s is supported in a sleeve-shaped bearingm "which" is provided with a rectangular arm m thatis bolted to avertical slide-piece D,

as shown in Fig. 2.

The slide-piece D is provided with a dovetailed rar-pbrtion which isguided in corresponding ways d on the front-standard a,

said slide-piece being provided with an extension D} at its lowerendthat extends through an opening in the table A, and is provided witha counterweight (not shown) that is suspended by means. of a rod w hav-"ing a hook-shaped upper end from the lower end of the extension D asshown in Fig. 2. YVhenthe slide-piece D is in its lowermost position ofrest the pinion g at the rear-end of the mandrel-spindle s is out ofmesh with the gear-wheel 9 but when the slidepiece is raised the pinion7 intermeshes with the gear-wheel g, so that rotary motion is impartedto the mandrel-spindle and the mandrel m on the front-end of the same.

Themandrel-spindle 5* is provided inter.- mediately of its length with acircumferential'groove m that is engaged by a setscrew m for'holding themandrel-spindle in proper position in its sleeve-shaped bearing. Themandrel m is provided with a groove corresponding in size and shape withthe ring to be rolled from the blank; different sizes and shapesrequiring correspondingly grooved m'andrels.

Below the mandrel, infront of the slidepiece D, are arranged two pairsof supporting rollers n which support the cylindrical ends of themandrel. The mandrel is pro vided with shouldered portions m" adjacentto the ring-carrying groove and between the supporting rollers forincreasing the strength of the same and resisting the bending of themandrel and the shifting of the samein longitudinal direction. The innerend of the mandrel m is made of square shape'so' as to fit in thecorresponding socket of the mandrel-spindle. At both sides of themandrel are arranged guide-rollers E which are provided with groovesforholding the ring-blank, said guide-rollers being.

pivoted to the upper ends of laterally oscillating elbow-levers E thatare fulcrumed to wing-shaped brackets e attached to opposite sides ofthe slide-piece D, the lower arms bow-levers E are connected by helicalsprings 6 with stationary points. on the slide-piece I), located belowthe fulcra of the elbow-levers E so that the guide-rollers are movedaway from the ring-blank when the slide-plate F is lowered.

The auxiliary slide-plate F is arranged at the front of the slide-pieceD' and guided thereon. Centrally thereof is arranged a projecting pin 03which is engaged by the inner end of a lever L, which is weighted at itsouter end, and which serves to lift the slide-plate F at the propertime. The weighted lever serves for counterbalancing the weight of theslide-plate F and of the parts attached thereto, and facilitates thelifting of the slide-plate so as to bring it from its lower position ofrest into the working position. The counter-weight on the hook to on theone hand serves to lower the slide-piece D, while the weighted lever Lon the other hand serves to raise the slide plate'F.

For the purpose of indicating the required size of the ring,- ahorizontal finger f is located below .the mandrel and extended.v

over the lower part of the ring-blank, said finger-being arranged at theupper end of a vertical rod 7'' that is guided in a vertical bore f ofthe slide-piece D, said vertical rod being providedlwith aforwardly-extending rod i which passes through an elongated slot f inthe slide-piece D to the outside of the same and engages the end of anindex or pointer 71, which is fulcrumed to a sectorshaped scale-plate Ithat is attached to the upper front-part of the slide-piece Dandprovided with graduatiqns at its outer arcshaped" end so as to indicatethe ,diflerent sizes of finger-rings to be rolled, -As soon as thepointer i arrives at the numbercorresponding to the size of the ring,the motion of the mandrel-spindle is interrupted, the slide-piecereturned to' its lower position by turning the crank-shaft d, by whichmotion theguide-rollers are moved sidewise of the mandrel, owing to thereturn of the sllde-plate by 1ts counterweight and the action of thesprings 6 so that the completed .ring can be removed with the mandrel"by removing the latter from its socket. A new blank is then placed onthe mandrel and the same returned to its position'in its spindle.

During the downward motion of the slidepiece into .its lowermostposition of rest the vertical shank f of the finger 7 forms contact witha slide-rod is which is located in the bore 7 below the shank f andsupported on a stationar arm 76 that is attached to the table A si ewiseof the slide-piece D, so that the finger is lifted, together with itshorizontal arm f and placed'into aposition close-to the mandrel, whilethe pointer is returned to the starting point on the scale,

as shown in Fig. 1. The scale-plate I is provided with an arc-shapedslot '2', concentric with the fulcrum of the pointer c', by which thescale-platemay be adjusted on its clamping screw 5 slightly higher orlower so as to permit the adjustment of the scale-plate to differentsizes or ring-blanks.

After the 5 scale is adjusted and the pointer set to the propergraduation on the scale, the latter is clamped in position by theclamping screw and the special size of rings rolled until the desiredquantity of the rings of a certain size isobtained.

The rolling of the blank into a finger-ring of the proper size isaccomplished in the same manner as in finger-ring rolling machinesheretofore in use, and requires. 'no special description in addition tothe operation hereinbefore described in connection with the rollingparts of the machine.

The new and'important feature of this invention, resides in thesize-indicating scale and index, as the rolling of the ring to theproper shape is accomplished by the automatic rolling: devices which aremore specifically described in the pending application I claim-as newand desire to secure by Le ters Patent:

' 1. In a machine for rolling finger-rings, the combination of amandrel, a slide-piece, a finger adapted to engage the inside of thering-blank, while the latter is onthe mandrel, a vertical shank forsaidfinger, asliderod guided in the slide-piece, and a station- .arysupport for said slide-rod for raising rodraising the finger-shank whenthe slide- I piece is lowered.

I 3. In a machine for rolling finger-rings, the combination of a ringblank supporting mandrel, a vertically guided slide-piece having aguide-slot in its upper part, and supporting the mandrel, a finger belowthe mandrel and adapted to engage the inside of the ring-blank, avertical shank for said finger, a horizontal arm extending forward fromsaid shank through said guide-slot, a scale, and a fulcrumed index orpointer engaged by said forwardly-extending arm for moving the pointerover the scale and indicating the size of the ring.

4. In a machine for rolling finger-rings, the combination of a ringblank supporting mandrel, a vertically guided slide-piece having aguide-slot in its upper part and supporting the mandrel, a finger belowthe mandrel and adapted to engage the inside of the ring-blank, meansfor raising the finger by T the lowering of the slide-piece, a scale,means for adjusting the scale, and a fulcrumed pointer adapted to moveover the scale and indicate the size of the ring.

In testimony, that I claim the foregoing as my invention, 1 have signedmy name in presence of tWo subscribing witnesses.

HENRY HENRICH.

Witnesses 1 PAUL GoEPEL, JOHN MURTAGH.

